Postgrest performs authentication and authorization using JWTs.1. JSON Web Token (JWT) is an open standard (RFC 7519) that defines a compact and self-contained way for securely transmitting information between parties as a JSON object. We can use a SQL funtion to generate a JWT based on username/password. However many users prefer to use the social logins instead of creating one more account. Authentication brokers like Auth0 provide an easy way to incorporate social logins like Facebook, Goo...